Labidiosuchus is an extinct genus of notosuchian crocodyliforms from Minas Gerais State, southeastern Brazil.

Labidiosuchus had a proportionally large number of the teeth (at least eight on each side of the jaw), packed tightly, some located lateral to each other.

Due to the incompleteness of the holotype, its feeding preferences or the exact phylogenetic position can't be determined with certainty.

The preserved specimen has a length of about 70.5 mm (2.78 in) and suggests that the jaw had a Y-shaped outline in dorsal view.

Other characteristics of the dentition which are shared with many members of the Sphagesauridae (such as the strong protruding forward inclination of the first pair of teeth and the presence of anterior projection on the lower jaw) locate it with the Notosuchia, a large group of crocodylomorphs that shows a great variation of dentition.